Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 170mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S
The AirTAC SAIJ200X170-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 150-170 mm usable travel window, allowing you to dial back the 170 mm nominal stroke by up to 20 mm during machine commissioning. Belonging to the 200 mm bore class, it delivers a massive 21991 N push force at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
This variant integrates a SUS304 stainless steel rod (code B) for superior corrosion resistance and features a magnet for position sensing with AirTAC CMSE reed and DMSE electronic switches. The extruded aluminum barrel includes sensor grooves on both sides. It uses a PT tapered G3/4 port and operates at speeds of 30-500 mm/s, supported by 50 mm air cushions at both ends to decelerate heavy loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 170 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×170 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S Is Used
Heavy Press Tuning
Fine-tune the 150-170 mm stroke end-position on heavy press machinery during setup, ensuring perfect contact without mechanical rework.
Product Changeover
Quickly adjust the travel stop for varying product sizes on a high-thrust conveyor line, using the 20 mm trim to adapt the motion endpoint.
Large Assembly Jigs
Leverage the 21991 N push force and SUS304 rod in harsh assembly jigs where precise end-stop tuning and corrosion resistance are mandatory.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S the Right Cylinder?
Select this 200 mm bore cylinder when an application requires extreme thrust, such as 21991 N at 0.7 MPa, combined with precise end-position tuning. The adjustable rear stopper allows fine-tuning of the 150-170 mm travel window without adding external stops or swapping the cylinder during product changeovers. If your force requirements are lower, stepping down to a 160 mm bore yields 14074 N at 0.7 MPa, which may save space and air consumption.
For ISO 15552 interchangeability, match the 200 mm bore, 170 mm stroke, 20 mm adjustment, G3/4 PT ports, and the -S magnet requirement. Since the stroke is under 300 mm, side-load stress is manageable, but the 40 mm rod diameter and M36x2 thread still require external guidance for heavy loads. Remember that the rear adjuster acts only as a travel stop, not a lock; the SAIJ cannot hold loads without live air pressure. For fail-safe load holding, consider the SAIL or BSAI series instead.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX170-20S FAQ
At 0.7 MPa operating pressure, this 200 mm bore cylinder generates 21991 N of push force and 15080 N of pull force. It can deliver a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the 170 mm nominal stroke down to a minimum of 150 mm. This provides a 150-170 mm adjustable window for fine-tuning the retract end position at commissioning without swapping the cylinder.
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